Spraying device for closed cooling tower

By introducing anti-clogging water circulation components and rotating components into the closed cooling tower, the problems of easy clogging and low water circulation efficiency of the spray device are solved, achieving efficient recycling of spray water and improved heat exchange effect.

CN224262341UActive Publication Date: 2026-05-19ANSHAN KABAIDE METAL CERAMICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANSHAN KABAIDE METAL CERAMICS CO LTD
Filing Date
2025-05-20
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing closed-loop cooling tower spray systems are prone to clogging, have low water circulation efficiency, and poor heat exchange performance.

Method used

It employs anti-clogging water circulation components and rotating components, including a water storage tank, a fine filter screen, a circulation pump, a sprayer, and a motor-driven trapezoidal water guide plate, to achieve efficient filtration and uniform distribution of spray water, and to expand the contact area between the heat medium and the spray water.

Benefits of technology

It effectively prevents impurities from clogging the system, improves water recycling rate, reduces operating costs, enhances heat exchange effect, and improves the cooling efficiency of the cooling tower.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of cooling towers, in particular to a spraying device for a closed cooling tower, which comprises a spraying box and an anti-blocking water circulation component, the bottom of the anti-blocking water circulation component is fixedly connected with the inner bottom wall of the spraying box, and the anti-blocking water circulation component comprises a water storage tank fixedly connected to the inner bottom wall of the spraying box. A funnel water guide piece is arranged at the top of the water storage tank, a fine filter screen is fixedly connected to the top of the funnel water guide piece, a water filtering hole plate is fixedly connected to the top of the fine filter screen, a circulating pipe is connected to the surface of the water storage tank in an inserted mode, and a circulating pump is fixedly connected to the middle end of the circulating pipe. By arranging the anti-blocking water circulation assembly, spraying water is filtered and prevented from entering the water storage tank to damage follow-up equipment, impurities are prevented from blocking the circulation pipe and the sprayer, continuous and stable operation of the spraying device is guaranteed, impurity accumulation is prevented from affecting the filtering effect, efficient recycling of the spraying water is achieved, and waste of water resources is greatly reduced.
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Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, and in particular to a spray device for a closed cooling tower. Background Technology

[0002] Closed-circuit cooling towers are widely used in industrial production. They cool the heat medium by exchanging heat between sprayed water and the heat medium in the coil. However, existing closed-circuit cooling tower spray devices have many problems. Therefore, it is of great practical significance to develop a spray device for closed-circuit cooling towers that can solve the above problems.

[0003] Existing device CN213455110U discloses a spray-proof device for closed-loop cooling towers, comprising a shell and a baffle. A float is fixedly connected to the bottom of the baffle. A filter screen is fixedly connected to one inner wall of the shell. Multiple guide cones are fixedly connected to one side of the filter screen, and multiple drainage holes are opened on one side of the filter screen. A ventilation hole is opened on one side of the shell, and a ventilation plate is fixedly connected inside the ventilation hole. Two positioning posts are fixedly connected to one inner wall of the shell. Two sliding grooves are opened on one side of the baffle, and the positioning posts are movably connected to the sliding grooves. This invention not only reduces the gravitational potential energy of water through the guide cones, preventing cooling water from spraying out and thus avoiding external dampness of the cooling tower, but also prevents cooling water from spraying out at different liquid levels during spraying or evaporation, improving the flexibility of the device. Furthermore, it can quickly reduce the temperature of the device, providing better protection.

[0004] The aforementioned equipment does not effectively filter the spray water, and impurities easily accumulate in the spray system, leading to blockages. Furthermore, the device lacks a complete water circulation component, preventing the spray water from being fully recycled, which increases water consumption and operating costs. The aforementioned equipment also fails to expand the contact area between the heat medium and the spray water, resulting in a decrease in the cooling effect of the heat medium. Utility Model Content

[0005] The purpose of this invention is to solve the problems of easy clogging of spray water, low water circulation efficiency and poor heat exchange effect in existing equipment, and to propose a spray device for closed cooling towers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a spray device for a closed cooling tower, comprising a spray box and an anti-clogging water circulation component. The bottom of the anti-clogging water circulation component is fixedly connected to the inner bottom wall of the spray box. The anti-clogging water circulation component includes a water storage tank fixedly connected to the inner bottom wall of the spray box, a funnel-shaped water guide at the top of the water storage tank, a fine filter screen fixedly connected to the top of the funnel-shaped water guide, a filter plate fixedly connected to the top of the fine filter screen, a circulation pipe inserted and connected to the surface of the water storage tank, and a circulation pump fixedly connected to the middle end of the circulation pipe.

[0007] Furthermore, the fine filter screen has a certain tilt angle, and the bottom of the fine filter screen is inclined with a debris discharge port on the contact surface with the spray box.

[0008] Furthermore, a sprayer is fixedly connected to the outlet end of the circulation pipe, and diversion pipes are fixedly connected to the left and right sides of the outlet end of the circulation pipe.

[0009] Furthermore, the outlet end of the diversion pipe is also fixedly connected to a sprayer. There are three sprayers: one is fixedly connected to the inner top wall of the spray box, and the other two are fixedly connected to the left and right sides of the inner wall of the spray box, respectively.

[0010] Furthermore, a rotating assembly is fixedly connected to the top of the filter plate, the rotating assembly including a column fixedly connected to the surface of the filter plate, and a trapezoidal water guide plate fixedly connected to the top of the column.

[0011] Furthermore, a protective sealing box is fixedly connected to the top of the trapezoidal water guide plate, and a motor is fixedly connected inside the protective sealing box.

[0012] Furthermore, a chuck is fixedly connected to the top of the motor, and the surface of the chuck is fixedly connected to the water guide platform.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting up an anti-clogging water circulation component, a water storage tank provides a stable foundation for the storage and circulation of spray water. The funnel-shaped water guide guides the spray water to flow into the water storage tank. The filter plate and the fine filter screen filter the spray water in sequence. The filter plate intercepts large particles of impurities, preventing them from entering the water storage tank and damaging subsequent equipment. The fine filter screen filters out small impurities, preventing impurities from clogging the circulation pipe and the sprayer, ensuring the continuous and stable operation of the spray device. The tilt angle of the fine filter screen and the design of the impurity discharge port allow impurities to slide down and be discharged under gravity, preventing impurities from accumulating and affecting the filtration effect. The circulation pump provides power for the circulation of spray water, drawing water from the water storage tank and transporting it to the sprayer through the circulation pipe and the diversion pipe, realizing the efficient recycling of spray water, greatly reducing water waste and lowering operating costs.

[0015] 2. In this utility model, by setting a rotating component, a trapezoidal water guide plate is supported by a column. The trapezoidal water guide plate guides the water flow to be evenly distributed, avoiding excessive local water flow. The protective sealing box protects the motor from the corrosion of the spray water, ensuring the stable operation of the motor. The motor drives the water guide platform to rotate through the chuck, which expands the contact area between the heat medium and the spray water, enhances the heat exchange effect, and improves the cooling efficiency of the cooling tower. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional front view of a spray device for a closed cooling tower;

[0017] Figure 2 This utility model provides a schematic diagram of the internal structure of a spray device for a closed cooling tower;

[0018] Figure 3 This utility model provides a schematic diagram of the spray structure of a spray device for a closed cooling tower;

[0019] Figure 4 This utility model provides a structural schematic diagram of an anti-clogging water circulation component in a spray device for a closed cooling tower.

[0020] Figure 5 This utility model provides a structural schematic diagram of the rotating component in a spray device for a closed cooling tower.

[0021] Legend:

[0022] 1. Spray box; 2. Anti-clogging water circulation assembly; 21. Water storage tank; 22. Funnel water guide; 23. Fine filter screen; 24. Filter plate; 25. Circulation pipe; 26. Circulation pump; 27. Debris outlet; 28. Sprayer; 29. ​​Diverter pipe; 3. Rotating assembly; 31. Column; 32. Trapezoidal water guide plate; 33. Protective sealing box; 34. Motor; 35. Chuck; 36. Water guide placement platform. Detailed Implementation

[0023] Please see Figure 1-5 This utility model provides a technical solution: a spray device for a closed cooling tower, including a spray box 1 and an anti-clogging water circulation component 2, wherein the bottom of the anti-clogging water circulation component 2 is fixedly connected to the inner bottom wall of the spray box 1.

[0024] The following section will explain the specific settings and functions of the anti-clogging water circulation component 2 and the rotating component 3.

[0025] In this implementation scheme: the anti-clogging water circulation component 2 includes a water storage tank 21 fixedly connected to the bottom wall of the spray box 1, a funnel water guide 22 on the top of the water storage tank 21, a fine filter screen 23 fixedly connected to the top of the funnel water guide 22, a filter plate 24 fixedly connected to the top of the fine filter screen 23, a circulation pipe 25 inserted and connected to the surface of the water storage tank 21, and a circulation pump 26 fixedly connected to the middle end of the circulation pipe 25.

[0026] The effects achieved by the above components are as follows: by setting up the water storage tank 21, sufficient spray water can be stored to meet the needs of long-term continuous operation; the funnel water guide 22 guides the spray water to flow in, improving the collection efficiency; the filter plate 24 and the fine filter screen 23 form a dual filtration system, intercepting impurities layer by layer and ensuring the cleanliness of the circulation system.

[0027] Specifically, the fine filter screen 23 has a certain tilt angle, and the bottom of the fine filter screen 23 is inclined with a debris discharge port 27 on the contact surface with the spray box 1.

[0028] The effect achieved by the above components is as follows: by setting up an inclined fine filter screen 23, impurities are allowed to slide off naturally by gravity, and impurities are discharged in time through the impurity discharge port 27, maintaining the long-term high-efficiency filtration of the fine filter screen 23 and ensuring smooth water circulation.

[0029] Specifically, a sprayer 28 is fixedly connected to the outlet end of the circulation pipe 25, and diversion pipes 29 are fixedly connected to the left and right sides of the outlet end of the circulation pipe 25.

[0030] The above components achieve the following effects: by connecting the circulation pipe 25 to the sprayer 28, the spray water is accurately sprayed out; the diversion pipe 29 realizes the reasonable distribution of water flow to meet the cooling needs of different areas.

[0031] Specifically, the outlet end of the diversion pipe 29 is also fixedly connected to a sprayer 28. There are three sprayers 28, one of which is fixedly connected to the inner top wall of the spray box 1, and the other two are fixedly connected to the left and right sides of the inner wall of the spray box 1 respectively.

[0032] The effect achieved by the above components is as follows: by setting up multi-angle distributed sprayers 28, an all-round spray layout is formed, eliminating spray dead corners, allowing all parts of the coil to fully contact the spray water, and enhancing the heat exchange effect.

[0033] Specifically, a rotating assembly 3 is fixedly connected to the top of the filter plate 24. The rotating assembly 3 includes a column 31 fixedly connected to the surface of the filter plate 24, and a trapezoidal water guide plate 32 is fixedly connected to the top of the column 31.

[0034] The effect achieved by the above components is as follows: by setting the column 31 to support the trapezoidal water guide plate 32, the trapezoidal water guide plate 32 guides the water flow evenly, creating good water flow conditions for the subsequent rotating components.

[0035] Specifically, a protective sealing box 33 is fixedly connected to the top of the trapezoidal water guide plate 32, and a motor 34 is fixedly connected inside the protective sealing box 33.

[0036] The effect achieved by the above components is as follows: by setting up the protective sealing box 33, reliable protection is provided for the motor 34, enabling it to operate stably in a humid environment and ensuring the power supply of the rotating component 3.

[0037] Specifically, a chuck 35 is fixedly connected to the top of the motor 34, and the surface of the chuck 35 is fixedly connected to the water guide platform 36.

[0038] The effect achieved by the above components is as follows: by setting the motor 34 to drive the water guide platform 36 to rotate via the chuck 35, the heat exchange area is expanded and the cooling performance is improved.

[0039] Working principle: By setting up the anti-clogging water circulation component 3, the water storage tank 21 provides a stable foundation for the storage and circulation of spray water. The funnel water guide 22 guides the spray water to flow into the water storage tank 21. The filter plate 24 and the fine filter screen 23 filter the spray water in sequence. The filter plate 24 intercepts large particles of impurities to prevent them from entering the water storage tank 21 and damaging the downstream equipment. The fine filter screen 23 filters out small impurities to prevent them from clogging the circulation pipe 25 and the sprayer 28, ensuring the continuous and stable operation of the spray device. The tilt angle of the fine filter screen 23 and the design of the debris discharge port 27 allow impurities to slide down and be discharged under gravity, preventing the accumulation of impurities from affecting the filtration effect. The circulation pump 26 provides power for the circulation of spray water, drawing water from the water storage tank 21 and transporting it to the sprayer 28 through the circulation pipe 25 and the diversion pipe 29, realizing the efficient recycling of spray water, greatly reducing water waste and lowering operating costs.

[0040] By setting up the rotating component 4, the trapezoidal water guide plate 32 is supported by the column 31. The trapezoidal water guide plate 32 guides the water flow to be evenly distributed, avoiding excessive local water flow. The protective sealing box 33 protects the motor 34 from the corrosion of the spray water, ensuring the stable operation of the motor 34. The motor 34 drives the water guide platform 36 to rotate through the chuck 35, which expands the contact area between the heat medium and the spray water, enhances the heat exchange effect, and improves the cooling efficiency of the cooling tower.

Claims

1. A spray device for a closed-loop cooling tower, comprising a spray box (1) and an anti-clogging water circulation assembly (2), characterized in that: The bottom of the anti-clogging water circulation component (2) is fixedly connected to the inner bottom wall of the spray box (1). The anti-clogging water circulation component (2) includes a water storage tank (21) fixedly connected to the inner bottom wall of the spray box (1), a funnel water guide component (22) at the top of the water storage tank (21), a fine filter screen (23) fixedly connected to the top of the funnel water guide component (22), a filter plate (24) fixedly connected to the top of the fine filter screen (23), a circulation pipe (25) inserted and connected to the surface of the water storage tank (21), and a circulation pump (26) fixedly connected to the middle end of the circulation pipe (25).

2. The spray device for a closed cooling tower according to claim 1, characterized in that: The fine filter screen (23) has a certain tilt angle, and the bottom of the fine filter screen (23) is provided with a debris discharge port (27) on the contact surface between the tilted bottom end and the spray box (1).

3. The spray device for a closed cooling tower according to claim 1, characterized in that: A sprayer (28) is fixedly connected to the outlet end of the circulation pipe (25), and diversion pipes (29) are fixedly connected to the left and right sides of the outlet end of the circulation pipe (25).

4. A spray device for a closed cooling tower according to claim 3, characterized in that: The outlet end of the diversion pipe (29) is also fixedly connected to a sprayer (28). There are three sprayers (28), one of which is fixedly connected to the inner top wall of the spray box (1), and the other two are fixedly connected to the left and right sides of the inner wall of the spray box (1).

5. A spray device for a closed cooling tower according to claim 1, characterized in that: A rotating assembly (3) is fixedly connected to the top of the filter plate (24). The rotating assembly (3) includes a column (31) fixedly connected to the surface of the filter plate (24). A trapezoidal water guide plate (32) is fixedly connected to the top of the column (31).

6. A spray device for a closed cooling tower according to claim 5, characterized in that: The top of the trapezoidal water guide plate (32) is fixedly connected to a protective sealing box (33), and a motor (34) is fixedly connected inside the protective sealing box (33).

7. A spray device for a closed cooling tower according to claim 6, characterized in that: A chuck (35) is fixedly connected to the top of the motor (34), and the surface of the chuck (35) is fixedly connected to the water guide platform (36).